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Message-Id: <20140922060857.8EECD34E008@smtpvbsrv1.mitre.org>
Date: Mon, 22 Sep 2014 02:08:57 -0400 (EDT)
From: cve-assign@...re.org
To: krahmer@...e.de
Cc: cve-assign@...re.org, oss-security@...ts.openwall.com, squid3@...enet.co.nz
Subject: Re: CVE-Request: squid pinger remote DoS
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Hash: SHA1
> I made a fix for squid 3.4.6 and request a CVE for
> this issue:
>
> The pinger code that checks for nodes being alive doesnt
> properly validate ICMP and ICMPv6 replies, in particular
> icmp6 types which are used to index into a string array.
> This could cause crashes when the index is OOB.
>
> A patch is available here:
>
> https://bugzilla.novell.com/show_bug.cgi?id=891268
>
> I also made some cleanups and error checking on the
> receive socket.
> From: Amos Jeffries <squid3@...enet.co.nz>
> What could happen worst-case (#1 or #3 ... flooding the parent
> processes log, slowing the entire service down and/or exhausting log
> disk space, which in turn can crash the parent process. ... The
> best-case being that some HTTP servers are assigned incorrect RTT
> values. Which adversely affects latency based routing logics ...
As far as we can tell, CVE IDs are required for cases #1 and #3:
> 1. "used to index into a string array" possibly corresponds to
> http://cwe.mitre.org/data/definitions/129.html for the modified
> default case after case 136, and approximately two other places in the
> patch
Use CVE-2014-7141.
> 3. added "if (preply.psize) < 0" code apparently corresponds to a more
> general issue with missing data validation
Use CVE-2014-7142.
- --
CVE assignment team, MITRE CVE Numbering Authority
M/S M300
202 Burlington Road, Bedford, MA 01730 USA
[ PGP key available through http://cve.mitre.org/cve/request_id.html ]
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